Finding the Fourth Proportional to 1,077.36, 1,622.69 and 1,025.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.36 : 1,622.69 = 1,025.52 : x
2. Step 2: Convert to fraction form
   1,077.36/1,622.69 = 1,025.52/x
3. Step 3: Cross multiply
   1,077.36x = 1,622.69 × 1,025.52
4. Step 4: Simplify right side
   1,077.36x = 1,664,101.05
5. Step 5: Solve for x
   x = 1,664,101.05/1,077.36
6. Step 6: Final answer
   x = 1,544.61